Ring Stretcher in wooden box Capacity_10g to 199g it detects double refraction

it detects double refraction

3-pronged adjustable opener with (in the separate box

Carrying pouch

It is important to understand what these limitations mean

All about (and reviews of) loupes (small high-power folding jewellers' magnifiers)

Ring Stretcher in wooden box Capacity_10g to 199g it detects double refractionSpecial clearance price while stocks last (once sold, there are no more) Handheld ring stretcher. Works by 'squashing' the ring around the outside as you turn handle. Includes 16 steel discs for ring shanks with thicknesses of between 4mm and 1mm. Yes it works fine but it's hard work compared with the large bench workshop models . However, as a low cost, simple, effective ring sizing machine go for it!